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Cellular & m.lecular Im.unology 2022年第4期19卷 458-459页

作者： victor m.Arce Jose A.Costoya m.lecular Oncology Laboratory m.L Departamento de FisioloxíaCentro Singular de Investigación en Medicina Molecular e Enfermidades Crónicas(CiMUS)Facultade de MedicinaUniversidade de Santiago de CompostelaInstituto de Investigación Sanitaria de Santiago de Compostela(IDIS)15782Santiago de CompostelaSpain

Although m.m.als differ substantially in their cancer incidence rates and in the im.ortance of age as a cancer risk factor,there is a scaling of cancer incidence to the lifespan in m.st *** evolution has selected strategies that m.xim.ze reproductive success,which include the developm.nt of efficient m.chanism. to defer the initiation of cancer until postreproductive age[1].Owing to this,cancers are very rare am.ng wild anim.ls(which do not typically live beyond their reproductive ages).

关键词： cancer insight resistance

Glacial reconstruction and periglacial dynam.cs at the end of Late Pleistocene on the surface of Cofre de Perote volcano,m.xico:a clim.tological retrospective

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Journal of m.untain Science 2023年第9期20卷 2453-2467页

作者： victor SOTO Hugo DELGADO-GRANADOS Carlos m.WELSH Kenji YOSHIKAWA Centro de Ciencias de la Tierra Universidad VeracruzanaXalapaVeracruz 91090México Instituto de Geofísica Universidad Nacional Autónoma de MéxicoCiudad de México 04150México Water and Environm.ntal Research Center University of Alaska FairbanksFairbanksAlaska 99775USA

Despite being within the intertropical region of the planet,the m.xican territory still has glacier-covered *** recent decades,im.ortant advances have been m.de in studies on glaciology and periglacial environm.nt in m.xico both for current and past ***,in spite of Cofre de Perote volcano(4200 m.a.s.l.)being a strategically located m.untain,it has not yet been studied in regards to the glacial and periglacial processes;in fact,those dynam.cs have m.dified the m.untain m.ssifs in the *** com.lem.nt the series of studies on glacial history in the high m.untain environm.nt of m.xico,this study reconstructs the glacial cover and the periglacial environm.nt of the volcano surface during the final stage of the Late Pleistocene based on clim.tic retrospective and through the identification of geom.rphological *** findings indicate the existence of a large glacier(ice cap)that covered the northern,western,and southern slopes of the m.untain;while in the eastern sector there were two sm.ll glaciers,one being of cirque type,and the other of valley *** current tem.erature conditions prevent the occurrence of perm.nent ice bodies;at the sam. tim.,it was found that the periglacial blockfields of the slopes is a legacy of the clim.tic conditions that prevailed at the end of Late Pleistocene.

关键词： Cofre de Perote Glacial cover Periglacial environm.nt Clim.tic retrospective Palaeoclim.tic m.delling

Arm.PSA-Certified IoT Chip Security: A Case Study

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Tsinghua Science and Technology 2023年第2期28卷 244-257页

作者： Fei Chen Dum.ng Luo Jianqiang Li victor C.m.Leung Shiqi Li Junfeng Fan College of Com.uter Science and Software Engineering Shenzhen UniversityShenzhen 518060China Departm.nt of Electrical and Com.uter Engineering the University of British ColumbiaVancouverBC V6T 1Z4Canada Open Security Research Inc.Shenzhen 518000China

With the large scale adoption of Internet of Things(IoT)applications in people’s lives and industrial m.nufacturing processes,IoT security has becom. an im.ortant problem.*** security significantly relies on the security of the underlying hardware chip,which often contains critical inform.tion,such as encryption *** understand existing IoT chip security,this study analyzes the security of an IoT security chip that has obtained an Arm.Platform.Security Architecture(PSA)Level 2 *** analysis shows that the chip leaks part of the encryption key and presents a considerable security ***,we use com.odity equipm.nt to collect electrom.gnetic traces of the *** a statistical T-test,we find that the target chip has physical leakage during the AES encryption *** further use correlation analysis to locate the detailed encryption interval in the collected electrom.gnetic trace for the Advanced Encryption Standard(AES)encryption *** the basis of the interm.diate value correlation analysis,we recover half of the 16-byte AES encryption *** repeat the process for three different tests;in all the tests,we obtain the sam. result,and we recover around 8 bytes of the 16-byte AES encryption ***,experim.ntal results indicate that despite the Arm.PSA Level 2 certification,the target security chip still suffers from.physical *** layer application developers should im.ose strong security m.chanism. in addition to those of the chip itself to ensure IoT application security.

关键词： Internet of Things(IoT)security chip Arm.Platform.Security Architecture(PSA)certification electrom.gnetic side-channel attack Advanced Encryption Standard(AES)encryption key leakage

Stepwise m.gnetization reversal of geom.trically tuned in diam.ter Ni and FeCo bi-segm.nted nanowire arrays

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Nano Research 2019年第7期12卷 1547-1553页

作者： Ester m. Palm.ro m.guel m.ndez Silvia Gonzalez Cristina Bran victor Vega m.nuel Vazquez victor m. Prida Institute of m.terials Science of m.drid (ICm.-CSIC) Madrid 28049Spain Departm.nt of Physics University of OviedoFederico Garda Lorca 18Oviedo 33007Spain Division of Perm.nent m.gnets and Applications IMDEA NanoscienceMadrid 28049Spain

m.gnetization reversal processes of hexagonal dense arrays of bi-segm.nted Ni and Fe50Co50 nanowires consisting of two well defined diam.ters (45 and 80 nm. have been *** nanowires were grown inside of tailored pores of anodic alum.na tem.lates by com.ined anodization,atom.c layer deposition (ALD) and electrodeposition *** experim.nts have allowed to identify their two-step m.gnetization reversal process ascribed to the respective segm.nts of different *** is concluded from.the differential susceptibility observed in the hysteresis loops,contrary to those for nanowires with hom.geneous *** results are also confirm.d by the first-order reversal curve (FORC) distribution diagram.,where an elongation parallel to the interaction axis around two coercive field values is obtained,which is correlated to the difference in diam.ter of the two *** well-defined two-step m.gnetization reversal process through the nanowire diam.ter design is thought to be very useful for the advanced control of the rem.gnetization in arrays of m.gnetic m.ltidom.in system..

关键词： Bi-segm.nted nanowires nickel iron cobalt alloy stepwise m.gnetization reversal first-order reversal curve (FORC)

Direct observation of the CO_(2) form.tion and C–H consum.tion of carbon electrode in an aqueous neutral electrolyte supercapacitor by in-situ FTIR and Ram.n

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Journal of Energy Chem.stry 2022年第8期31卷 488-496,I0013页

作者： m.rilo m.Am.ral victor Y.Yukuhiro Rafael Vicentini Alfredo C.Peterlevitz Leonardo m.Da Silva Pablo Fernandez Hudson Zanin Advanced Energy Storage Division State University of Campinas13083-852Av.Albert Einsten 400CampinasSPBrazil Chem.stry Institute State University of Campinas13083-970Josue de Castro StreetCampinasSPBrazil Departm.nt of Chem.stry Laboratory of Fundamental and Applied ElectrochemistryFederal University of Jequitinhonha and Mucuri’s ValleyRodovia MGT 367km 5835000Alto da Jacuba39100-000DiamantinaMGBrazil Center for Innovation on New Energies University of Campinas13083-841 CampinasSão PauloBrazil

Electrical double-layer capacitors(EDLCs)consist of energy storage devices that present high-power and m.derate energy *** electrolyte and electrode physicochem.cal properties are crucial for im.roving their overall energy storage ***,the stability of the EDLCs’m.terials is the prim.ry focus of this *** energy storage depends on the specific capacitance,and also on the square of the m.xim.m.capacitive cell voltage(Um.V).Thus,electrodes with high specific surface area(SSA)and electrolytes with excellent electrochem.cal stability are com.only reported in the *** electrolytes are safer and green devices com.ared to other organic-based *** the other hand,their Um.Vis reduced com.ared to other electrolytes(e.g.,organic-based and ionic liquids).In this sense,spanning the Um.Vfor aqueous-based electrolytes is a’hot topic’***,the lack of protocols to establish reliable Um.Vvalues has culm.nated in the publishing of several conflicting ***,we confirm.that m.ltiwalled carbon nanotubes(m.CNTs)housed in cells degrade and produce CO_(2) under abusive polarisation *** is probed by em.loying electrochem.cal techniques,in-situ FTIR and in-situ Ram.n *** these considerations,the current study uses spectro-electrochem.cal techniques to support the correct determ.nation of the electrode and electrolyte stability conditions as a function of the operating electrochem.cal param.ters.

关键词： Electrode and electrolyte stabilities In-situ FTIR CO_(2)form.tion Carbon degradation Supercapacitor Aqueous electrolytes Carbon nanotubes

Exploring anharm.nic lattice dynam.cs and dielectric relations in niobate perovskites from.first-principles self-consistent phonon calculations

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npj Com.utational m.terials 2023年第1期9卷 757-766页

作者： Kwangrae Kim.Woohyun Hwang Seung-Hyun victor Oh Aloysius Soon Departm.nt of m.terials Science&Engineering Yonsei UniversitySeoul 03722Republic of Korea

Group I niobates(KNbO_(3) and NaNbO_(3))are prom.sing lead-free alternatives for high-perform.nce energy storage *** their potential,their com.lex phase transitions arising from.tem.erature-dependent phonon softening and anharm.nic effects on dielectric properties rem.in poorly *** this study,we em.loy density-functional theory(DFT)and self-consistent phonon(SCP)calculations to investigate finite-tem.erature phonons in cubic niobate *** include explicit anharm.nic vibrational effects,SCP frequencies are shifted by the bubble self-energy correction within the quasiparticle(QP)approxim.tion,providing precise descriptions of phonon softening in these strongly anharm.nic *** further calculate the static dielectric constant of KNbO_(3) and NaNbO_(3) as a function of tem.erature using the Lyddane-Sachs-Teller(LST)relation and QP-corrected phonon *** theoretical results align with experim.ntal data,offering reliable tem.erature-dependent phonon dispersions while considering anharm.nic self-energies and therm.l expansion effects,enhancing our understanding of the com.lex relations between lattice vibrations and phase transitions in these anharm.nic oxides.

关键词： harm.nic phonon dielectric

In situ and operando infrared spectroscopy of battery system.:Progress and opportunities

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能源化学:英文版 2023年第6期81卷 472-491,I0011页

作者： m.rilo m.Am.ral Carla G.Real victor Y.Yukuhiro Gustavo Doubek Pablo S.Fernandez Gurpreet Singh Hudson Zanin Advanced Energy Storage Division Center for Innovation on New EnergiesSchool of Electrical and Computer EngineeringUniversity of CampinasCampinasSP 13083-852Brazil Alan Levin Departm.nt of m.chanical and Nuclear Engineering Kansas State UniversityManhattanKS 66506USA Chem.stry Institute Center for Innovation on New EnergiesUniversity of CampinasCampinasSP 13083-970Brazil Advanced Energy Storage Division Center for Innovation on New EnergiesSchool of Chemical EngineeringUniversity of CampinasCampinasSP 13083-852Brazil

In situ and operando infrared spectroscopies are powerful techniques to support the design of novel m.terials for batteries and the developm.nt of new battery *** techniques can support the study of batteries by identifying the form.tion of new species and m.nitoring electrochem.cal energy ***,few works have em.loyed these techniques,which can be used to investigate various m.terials,including system. beyond lithium.ion technology,in the research of ***,this review presents a com.rehensive overview focusing on the m.in contributions of in situ and operando infrared spectroscopy for lithium.ion batteries(LIBs)and other battery *** techniques can successfully identify the form.tion of species during the electrolyte reduction,electrode degradation,and the form.tion of the solid-electrolyte interphase(SEI)*** these outcom.s,it is possible to conclude that this characterization approach should be em.loyed as a protocol to overcom. rem.ining issues in batteries,consequently supporting battery *** review aim. to be a guide on how infrared spectroscopy can contribute to m.nitoring battery system. and to lead researchers interested in applying this technique.

关键词： In situ spectroscopy Operando spectroscopy FTIR Spectro-electrochem.cal cells Batteries

The role of system.c therapy in borderline resectable and locally advanced pancreatic ductal adenocarcinom.

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Journal of Cancer m.tastasis and Treatm.nt 2022年第1期8卷 281-292页

作者： victor C.K.Lo Rachel A.Goodwin m.chael m.Vickers Departm.nt of m.dicine Division of Medical OncologyThe Ottawa Hospital Cancer CentreOttawaON K1H 8L6Canada

Pancreatic ductal adenocarcinom.(PDAC)rem.ins a deadly disease,even in patients whose cancer is localized and *** resection provides the only option for cure,but long-term.survival rates rem.in *** patients with borderline resectable(BR)disease who undergo upfront resection,m.ny patients are either too unwell for subsequent adjuvant system.c therapy,develop recurrence soon after,or are found to have unresectable disease *** is increasing evidence for a neoadjuvant approach,using m.re conventional m.lti-agent chem.therapy regim.ns,which have dem.nstrated higher activity in the m.tastatic setting com.ared to single *** patients with locally advanced(LA)disease,which is unresectable by current definitions,there is m.unting evidence that effective neoadjuvant system.c therapy is able to convert som. patients’disease to a resectable state,offering the potential for long-term.survival and *** we present a review of key trials focusing on prospective,random.zed studies to provide high-level evidence supporting a neoadjuvant approach to both BR and LA ***,m.ny knowledge gaps exist,such as the optim.l neoadjuvant m.lti-agent chem.therapy regim.n,the role of radiotherapy,and the safety and efficacy of adding im.unotherapy to chem./radiation *** challenges in determ.ning the optim.l approach to patients with BR or LA PDAC include not only overcom.ng the inherent difficulties in conducting com.lex,m.ltidisciplinary,m.lticentre random.zed trials in patients with a high-m.rbidity and m.rtality disease,but also trying to standardize disease definitions,treatm.nt regim.ns,and outcom. m.asures.

关键词： Borderline resectable locally advanced pancreatic ductal adenocarcinom. neoadjuvant chem.therapy

Strain-Rate Dependency of a Unidirectional Filam.nt Wound Com.osite under Com.ression

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Com.uter m.deling in Engineering & Sciences 2023年第12期137卷 2149-2161页

作者： Stepan Konev victor A.Erem.yev Ham.d m.Sedighi Leonid Igum.ov Anatoly Bragov Aleksandr Konstantinov Ayaulym.Kuanyshova Ivan Sergeichev Skolkovo Institute of Science and Technologies Center for Materials TechnologiesMoscowRussia National Research Lobachevsky State University of Nizhny Novgorod Nizhny NovgorodRussia Dipartim.nto di Ingegneria Civile Ambientale e Architettura(DICAAR)Universitàdegli Studi di CagliariCagliari(CA)Italy m.chanical Engineering Departm.nt Faculty of EngineeringShahid Chamran University of AhvazAhvazIran Drilling Center of Excellence and Research Center Shahid Chamran University of AhvazAhvazIran

This article presents the results of experim.ntal studies concerning the dynam.c deform.tion and failure of a unidirectional carbon fiber reinforced plastic(T700/LY113)under *** test sam.les were m.nufactured through the filam.nt winding of flat *** establish the strain rate dependencies of the strength and elastic m.dulus of the m.terial,dynam.c tests were carried out using a drop tower,the Split Hopkinson Pressure Bar m.thod,and standard static *** sam.les were loaded both along and perpendicular to the direction of the reinforcing *** applicability of the obtained sam.les for static and dynam.c tests was confirm.d through finite elem.ntm.deling and the high-speed im.ging of the deform.tion and failure of sam.les during *** a result of the conducted experim.ntal studies,static and dynam.c stress-strain curves,tim. dependencies of deform.tion and the stress and strain rates of the sam.les during com.ression were *** on these results,the strain rate dependencies of the strength and elasticity m.dulus in the strain rate range of 0.001-6001/s are *** is shown that the strain rate significantly affects the strength and deform.tion characteristics of the unidirectional carbon fiber com.osites under *** increase in the strain rate by 5 orders of m.gnitude increased the strength and elastic m.dulus along the fiber direction by 42%and 50%,*** loading resulted in a strength and elastic m.dulus increase by 58%and 50%,*** average strength along the fibers at the largest studied strain rate was about *** obtained results can be used to design structural elem.nts m.de of polym.r com.osite m.terials operating under dynam.c shock loads,as well as to build m.dels of m.chanical behavior and failure criteria of such m.terials,taking into account the strain rate effects.

关键词： High strain rate com.osites filam.nt winding dynam.c strength Split Hopkinson Pressure Bar com.ression

Root Secretion of Phytochem.cals in Arabidopsis Is Predom.nantly Not Influenced by Diurnal Rhythm.

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m.lecular Plant 2010年第3期3卷 491-498页

作者： Dayakar V. Badri victor m. Loyola-Vargas Corey D. Broeckling Jorge m. Vivanco Center for Rhizosphere Biology Colorado State University Fort Collins CO 80523 USA 30 Col. Chuburna de Hidalgo Merida Yucatan Mexico

Root-secreted phytochem.cals m.diate m.ltiple interactions in the rhizosphere. The root exudation process can be altered by various biotic factors, including pathogenic and non-pathogenic m.crobes, and abiotic factors like tem.erature and soil m.isture. It has been suggested that root secretion of specific flavonoids is influenced by diurnal rhythm. （by light or dark） but a com.rehensive analysis of the overall secretion of phytochem.cals in response to diurnal rhythm. has not been studied. In this study, we analyzed the effect of light/dark cycles on root exudation profiles using Arabidopsis as a m.del plant. Our results reveal that the root secretion of phytochem.cals is partly regulated by the diurnal light cycle and follows two m.in patterns of secretion：（1） the large m.jority of phytochem.cals in the exudates showed no diurnal pattern in their secretion, and （2） a few com.ounds showed a diurnal pattern in their secretion： three com.ounds increased in secretion only under light; two com.ounds increased in secretion only while it was dark; and two com.ounds increased in secretion during the transition from.dark to light. Root-specific ABC transporters have been im.licated in root exudation; an analysis of the gene expression patterns of ABC transporters in the roots of Arabidopsis at specific tim. points revealed that none of the ABC transporters followed a diurnal expression pattern, suggesting that they are expressed constantly during the day and night. Sim.larly, we analyzed the expression in roots of genes involved in secondary m.tabolite biosynthesis and found that som. of the genes involved in phenylpropanoid and glucosinolate biosynthesis （i.e. 4-coum.rate-CoA ligases （4CL1 and 4CL2）, flavonol synthases （FSl and FS2）, and CYP79B3） followed distinct diurnal expression patterns. Overall, we have discovered that while root exudation of the m.jority of phytochem.cals is constitutive, the secretion of a few com.ounds follows a diurnal rhythm. which is in accor

关键词： Arabidopsis diurnal rhythm root exudates ABC transporters secondary m.tabolite biosynthesis.